| 摘要 |
A raisable flexible curtain door for closing a doorbay, the door including two lateral uprights each having a slideway that forms a constriction, the curtain substantially forming a plane and having lateral edges that slide in respective ones of said constrictions and that are provided with relief projecting out from the plane of the curtain, said relief being disposed substantially continuously along the lateral edges of the curtain and being adapted to bear in substantially sealed manner against the constrictions of the slideways at least while the curtain is being subjected to a traction force directed towards the inside of the door-bay, said relief being sufficiently flexible to be able to pass through said constrictions when said traction force exceeds a determined value, wherein said relief is constituted by a resilient flexible material in sheet form secured to the lateral edges of the curtain, and said sheet material extends outwardly from each lateral edge of the curtain on either side of the plane of the curtain.
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